Reference position: 30 − 0 = 30Aim: 0Start: 30Arrival: 30Played without spin from 30 (3rd diamond) to the top-right corner (aim 0). The ball goes around the short cushion and comes back to the left long cushion at 30, i.e. the 2nd diamond: 2/3 of 3 = 2.
2/3 System (2/3 시스템) · Drill cards
Arrival = Start − Aim
50 − 20 = 30Aim: 20Start: 50Arrival: 30Start 50 (5th diamond), aim 20 (1st diamond on the right cushion). Arrival 30 = 2nd diamond.
60 − 30 = 30Aim: 30Start: 60Arrival: 30Start 60, aim 30 (1.5 diamonds). Arrival again 30 = 2nd diamond.
75 − 30 = 45Aim: 30Start: 75Arrival: 45Start 75 (7.5 diamonds), aim 30. Arrival 45 = 3rd diamond.
20 − 10 = 10Aim: 10Start: 20Arrival: 10Start 20, aim 10 (half diamond). Arrival 10, i.e. 2/3 of a diamond from the corner.